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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
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SMAL3800
SMAL3800
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Schneider Electric
SQO103EB6
SQO103EB6
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Schneider Electric
SQO106EB6
SQO106EB6
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Schneider Electric
SQO110EB6
SQO110EB6
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Schneider Electric
SQO110EC6
SQO110EC6
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Schneider Electric
SQO116EB6
SQO116EB6
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Schneider Electric
SQO120EB6
SQO120EB6
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Schneider Electric
SQO120EC6
SQO120EC6
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Schneider Electric
SQO125EB6
SQO125EB6
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Schneider Electric
SQO132EB6
SQO132EB6
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Schneider Electric
SQO140EB6
SQO140EB6
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Schneider Electric
SQO140EC6
SQO140EC6
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Schneider Electric
SQOE100100
SQOE100100
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Schneider Electric
SQOE100100S
SQOE100100S
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Schneider Electric
SQOR106B03
SQOR106B03
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Schneider Electric
SQOR116B03
SQOR116B03
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Schneider Electric
TL8ASR44A9SXFXXXXX
TL8ASR44A9SXFXXXXX
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$23,735.09
Schneider Electric
TSB-106
TSB-106
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Schneider Electric
TSB-116
TSB-116
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Schneider Electric
TSB-125
TSB-125
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Schneider Electric
WA4FFR64A3SXXXXXDX
WA4FFR64A3SXXXXXDX
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$3,968.11
Schneider Electric
X13450313-01
X13450313-01
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$64.16
Schneider Electric
10P0100H06
10P0100H06
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$1,419.18
Square D
16261
16261
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Schneider Electric
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.